266430 has 32 divisors (see below), whose sum is σ = 653184. Its totient is φ = 69536.

The previous prime is 266417. The next prime is 266447. The reversal of 266430 is 34662.

It is a junction number, because it is equal to n+sod(n) for n = 266397 and 266406.

It is a congruent number.

It is an unprimeable number.

266430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2437 + ... + 2543.

It is an arithmetic number, because the mean of its divisors is an integer number (20412).

2²⁶⁶⁴³⁰ is an apocalyptic number.

266430 is an abundant number, since it is smaller than the sum of its proper divisors (386754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266430 is a wasteful number, since it uses less digits than its factorization.

266430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 266430 is about 516.1685771141. The cubic root of 266430 is about 64.3469117416.

It can be divided in two parts, 266 and 430, that added together give a palindrome (696).

The spelling of 266430 in words is "two hundred sixty-six thousand, four hundred thirty".